Locking device



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J. s. LAcH LOCKING DEVICE 2 Sheets-Sheet Filed Aug. 19. 1925 vvuentoz Dec. 18, '1928.

I 1,696,045 J. 5. ITACH v LOCKING DEVICE Filed Au qle, 1925 2 Sheets-$heet 2 Elmm claims.

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no a OF BRIDGEI P OBI, CONNECTICUT, ASSIGNOB TO THE YALE & TO'WNE F STOBD, CONNECTICUT.

G DEVICE.

Application filed August 18,1925. Serial no. trait.

This invention relates to improvements in locking devices and" more particularly to those of the rim latch type,one object of the invention being to provide a simplefjrim latch and door bolt construction. j j I p A. further object is to combine with a rim door bolt, means whereby night latch functions may be obtained;

A further object is to so construct the device that reversal of the bolt ma be efiected to adapt the same to doors difiermg 1n bevel.

A further object is to provide simple means to attach the cover plate tothe casing without the use of screws.

With these and other objects in View, the invention consists in certain novel features of construction and combinations of parts as] hereinafter set forth and pointed out in the Inthe accompanyin drawin s;

Figure 1 is a view 8 owing t e application'f of my improvements;

Figure 2 is a horizontal sectional'view with the parts assembled on a door and with the keeper applied to the jamb of the door frame;

Figure 3 is a rear or inner view of the rim bolt structure, showingthe application of the cover plate to the casing; h p

Figure 1 is a rear or inner faceview with the cover plate removed; p

Figure 5 is a similar view with the slide memberremoved; W r v Figure 6 is a transverse sectional-view 0n the line 6-6 of Figure 3, and

Figure 7 is an inner face view of the cover plate and rollback cam carried thereby. f

A casing l for the accommodation of a door bolt 2 and operating means therefor, is s'e-- cured to the inner face of a door 3 and astrikeor kwper 4 for the bolt, is secured to the door jamb 5. The casin 1 is formed with a longitudinal hollow en argement 6 in which the bolt 2 is movable. The forward end of the bolt is beveled as at 7 and passes freely through a hole in one end of the casing so that it may enter the keeper. The rear end of the bolt terminates in a shank 2 which passes the latch device"16"-18.

and the laterally projecting portions there- I of being intended for the accommodation of an inside knob 12 attached to the bolt 2. By means ofthe inside-knob 12, the bolt may be. retracted and it may be held in retracted position'by. causing the knob to enter the lateral notch or recess 11, or it may be deadlockedin projected position by causing the knob to enter the ofi's'etfnotch or recess 10. The knob 12 is made with a shank 13 which passes transing pin portion of the knob shank is made with an annular groove 15 which receives a slotted latch plate 16, the latter resting on the bolt 2 and provided with a. finger 17 having a l8 toengage shoulder 19 formed by an anserves to latch the knob 12' to the bolt; By removing said latch, the knob may be withdrawn andthe bolt given a half turn to adapt its beveled forwardend to a door of a diiferentbevel,after which the knob will be replaced and secured in place by means of A transversely curved slide 21 is mounted on the bolt 2 and\ protided with a diagonal slot 22 which receives the pin 14 on the knob shank. The slide 21 is provided intermediate of its ends with lateral arms 23--24, each having a flange 25 at its free end tocooperate with the cover plate 26 of the casin and retain the slide in proper relation to the olt. A pin 27 projectsfrom the arm 23 of the slide, and the latter is provided at one end with alateral' edgeswith resilient flanges 30 which enter the casing 1 and are .provided with small bosses 31 which. cooperate with ribs 32 with which the side walls of the casing 1 are provided, and thus the cover plate is held in place in the casing without necessity for the employment of screws. The cover plate may also be pro vided with a guide lug 32 for the bolt 2.

for the accommodation of a cylinder lock 33,

' nular groove 20in the bolt. The latch device The door 3 is provided with a suitable bore the outer end of which is seated in an escutcheon 34 on the outer face of the door, and

screws 35 secure said "lockrjto a p'late36 on the inner face of the door. The operating I.-

bar 37 attached to the revoluble member of the lock 33 enters a slot 37 in the hub 38 of a roll-back cam 39 carried by the cover plate 26. The roll-back cam is cooperable with the pins, 27 and 29 for controlling the o eration of the bolt by the outside key contro ed lock means It is apparent that the bolt may be manually operated from the inside by manipulation of the knob 12, and that it may be also retracted from the outside with the use of a key, even though'the bolt be deadlocked in projected positlon. The bolt may also be released. from the deadlocked retracted osition, then projected and deadlocked om the outside by the use of the ke Assuming that the bolt is eadlocked in projected position by reason of engagement of the knob 12 in the lateral recess or offset portion 10 of the slotted casing 1, the operator will insert a proper ke in the cylinder lock and impart thereto a ouble turn,viz,'

two rotations in the same direction. During the first rotation of the roll-back cam 39, said cam will engage the pin 29 on the slide 21 and cause longitudinal movement of the latten During such movement of the slide, the

bolt will, by reason of the pin-and-slot connection 14-22, be partially retracted and turned suficiently to move the knob '12 from the offset opening or notch 10 to' the slot 9, and the pin 27 on the slide will be brought within the path of the movement of the rollback cam because, after cam 39 passes pin 29,

spring 8 can project the bolt 2 only to one end of slot 9, at which time, pin 27 will be within reach of the cam 39. During the second turning of the key and, the roll-back cam, the latter will engage the pin 27 and 7 move the slide rearwardly, the bolt moving with it and becoming fully retracted. The

bolt may be held in retracted position by manually causing the knob 12 to enter the notch-or recess 11 in the casing.

The bolt may be deadlocked in projected position b manipulating the key from the outside. his may be accomplished by giving the key a reverse turn, thus causing the roll-back to enga e one of the pins on the slide and move t e latter forwardly, thus causing the bolt to turn (by reason of the pinand-slot construction 14 -22) and the inside knob 12 to become disposed in the OE- set opening or recess 10, thereby deadlocking the bolt; 3 j 4 My improvements provide a rim door bolt action combined with a night latch opera tion. a

Various changes might be made in the details of construction of my invention without departing from the spirit thereof or lim iting its scope, and hence I do not restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Lettors-Patent, is

1. The combination of a manually operable bolt, means for deadlocking the same,

tion, longitudinally spaced pins on the trolle outside .ke -controlled means, a slide mount ed on the olt and cooperating therewith to move the bolt to and fromdeadlocking posiand a roll-back cam operated by said keycontrolled means to successively engage the pins for unlocking and retracting the bolt. W 2. The combination with a casing having a 'slot with an offset portion, a spring projected bolt movable in said casing, and a knob attached to the bolt and movable in said slot and the oflfset portion thereof, of key controlled means operable from outside the door, and; means operable by said key controlled means to operate the bolt to move the knob out of said ofi'set portion of the slot' and then retract the bolt.

ide,

3. The combination with acasing havinga slot with an offset portion, a spring projected bolt movable in said casing, and a knob attached to the bolt and movable in said slot and the ofi'set'portion thereof, of key controlled means operable fromoutsid'e the door, and means operable by said key controlled means to o erate the bolt to move the knob into said 0 set portion of the slot and thus deadlock the bolt after it shall have been spring-projected. I

4'. The combination with a casing having a slot, a. spring projected door bolt movable in said casing, and a knob on the bolt and movable in said slot, of outside key-controlled means, and a member intermediate said bolt and key controlled means and operatively connected with both, whereby the bolt may be retracted either manually or with the use of a key, a ainst the resistance of the spring which pro ects the bolt. a

5. The combination with a casing having a slot" provided with an ofiset portion, a sprin projected bolt movable in said casmg, a kno on the bolt and movable in said slot and in theofiset portion thereof, and out-' eration of said key-controlled means Wlll effect unlocking and retracting of the bolt or locking of the bolt when in projected position.. I

- 6. The combination with a casing having'a slot provided with an offset portion, a sprin projected boltzmovable insaid casing, a kno on the bolt aiidmovable in said slot and in the ofisetdportionthereof, and outside key-conmeans, of a slide mounted in said casing adjacent to the bolt, a pin-and-slot connection between said slide andbolt, the slot of said connection being diagonal, a roll-back cam operable by said key controlled means, two pins carried bysaid slide and spaced apart, said pins being positioned to be engaged successively during successive rotations of the roll-back cam to efiect unlockin and retracting of the bolt.

. The combination with a casing having a slot provided with an ofiset portion, a

spring-projected bolt movable in said casing,

a knob on thebolt movable in'said slot and in the offset portion thereof, and outside keycontrolled means, a slide having pin-and-slot connection with the bolt, the slot of said con nection being diagonal, a roll-back cam operable by the key controlled means, and a pin on said slide in position to be engaged-bythe roll-back cam to move the slide in a di rection to turn thesame when in projected position and cause the knob to-enter the ofi-* 1 set portion of the slot and dead-lock the bolt by manipulation of the key controlled means.

8. The combination'with a casing having a slot provided with an oflset portion, a spring-projected bolt movable in said casing, a knob on the bolt and movable in said slot and in the 'ofiset portion thereof, and outside key controlled means, of a slide member intermediate said key cont-rolled means and said. bolt, a pin-and-slot connection between said member and the bolt, the slot of said connection being diagonal, whereby operation of said key-controlled means will effeot unlocking and retracting of the bolt or locking of the bolt when in projected posi-' tion, and guide and retaining means for said slide member. c 1 9. The combination with a slotted casing and a door bolt movable therein said bolt bolt. 4 11. The combination with a slotted casing, "a door bolt movable therein, said ,bolt havhaving a beveled forward end, of a knob movable in the slot of the casin and having a shank passin ing a beveled forward end, of a knob movable in the slot of the easing and having. a shankpassing transversel through and beyond the bolt, and a remova le locking device engaging said shank to lock said shank to the bolt.

' 12,. The combination with a slotted casing,

a door bolt movable therein, said .bolt having a beveled forward end, of a knob movable in the slot ofthe casing and having a shan Eassingitransversely through and be ond the olt, said shank having a groove and the bolt having a shoulder, and a slotted locking plate to engage in the groove in the knob shank, said plate having a art provided with a toe to engage the shoul er on the bolt. a

' transverse ythrough the bolt and remova le therefrom to permit from displacement relative to the e In testimony whereof, I have signed this specificatiom j a JOSEPH S. LACH. 

